Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:36:54 2012

Optimize a model with 479 rows, 1640 columns and 2878 nonzeros
Presolve removed 28 rows and 1042 columns
Presolve time: 0.02s
Presolved: 451 rows, 598 columns, 1814 nonzeros
Variable types: 0 continuous, 598 integer (598 binary)
Found heuristic solution: objective 40.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 24 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    2.00000    0   12    3.00000    2.00000  33.3%     -    0s

Explored 0 nodes (45 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%